B
- Baer, George Frederick (1842–1914), RDG 1901-.
- Bailey, E. H., UP 1965-1971.
- Baldwin, William H., Jr. (1863–1905), LIRR 1896-1905.
- Bancroft, William Amos (born 1855), BER 1899-.
- Bandeen, Robert (born 1930), CN 1974-1982.
- Banfield, Edward, GFS.
- Barriger, John W., III (1899–1976), Monon 1946-1953, P&LE 1956-1964, MKT 1965-1970, B&M 1973-1974.
- Bauer, Kenneth J., LIRR 2000-2003.
- Beatty, Edward Wentworth (1877–1943), CPR 1918-1943.
- Beckley, Thomas M., SOO 1978-1983.
- Beeching, Richard (1913–1985), BR 1961-1965.
- Bennett, James I., P&LE 1877-1881.
- Berdell, Robert H., Erie 1864–1867
- Bernet, John J. (1868–1935), NKP 1916-1926, Erie 1927-1929, C&O 1929-1932, NKP 1933-1935.
- Bertrand, Charles E., D&H 1977-1978.
- Besener, Willi, DR 1946-1949.
- Beven, John L., IC 1938-1945.
- Biaggini, Benjamin (1916–2005), SP 1964-1983.
- Billings, Frederick H. (1823–1890), NP 1879-1881.
- Blackstone, Timothy B. (1829–1900), CA 1864-1899.
- Blake, Ronald James, KCRC 2006–present.
- Bledsoe, Samuel T. (1868–1939), ATSF 1933–1939.
- Boardman, Joseph H., Amtrak 2008–present.
- Boatner, Victor V. (1881–1950), CGW 1929-1931.
- Boeckmann, Alan L., BNSF.
- Bolton, John, D&H 1826-1831.
- Bond, Frank S., RDG 1883-.
- Bond, Hiram, TCI
- Boyd, Alan Stephenson (born 1922), IC 1969-1972, Amtrak 1978-1982.
- Brooke, George D., C&O 1933-, PM 1933-, NKP 1935-, VGN.
- Brosnan, D. William, SOU 1962-1967.
- Bowen, James, Erie 1841–1842.
- Bowman, Hollis, MEC 1863-1864.
- Brown, Revelle W., RDG.
- Bruce, Harry J., IC (1983–1990)
- Bryant, Gridley (1789–1867), Granite Railway.
- Bryant, Robert E., BBRR -present.
- Budd, John M., GN.
- Budd, Ralph (1879–1962), GN 1919-1932, CB&Q 1932-1949.
- Buenrostro, Hugo Jiménez, KCSM 2006–present.
- Buford, Algernon S. (1826–1911), R&D 1865-1892.
- Buford, Curtis D., P&LE 1965-1969.
- Burbidge, Fred, CPR 1972-1981.
- Burdakin, John H., GTW.
- Burkhardt, Ed, WC 1987-1999, Railworld 2000–present.
- Burns, John J., Alleghany Corporation.
- Burns, Ron (born 1953), UP 1996.
- Burt, Horace G. (1849–1913), UP 1898-1904.
- Burtness, Harold W. (1897–1978), CGW 1946-1948.
- Bury, Oliver Robert Hawke (1861–1946), GWR Brazil 1892–1894, GNR 1902–1912, LNER 1912–1945.
- Bush, Benjamin Franklin (1860–1927), WM 1907-1911, MP 1911-1923, D&RG 1912-1915, WP 1913-1915.
- Busiel, Charles Albert (1842–1901), LSR, C&M.
- Butzelaar, Frank, SRY 2008–present.
Read more about this topic: List Of Railroad Executives